|
[Sponsors] |
December 11, 2005, 22:56 |
phase inversion
|
#1 |
Guest
Posts: n/a
|
hi all
iam trying to simulate phase inversion in horizontal pipe(two phase L-L flow)..using fluent how can i know where exactly the phase inversion is occuring? any body has any idea regarding this? i thought if i have the experimental values of the pressure and i know at what length of the pipe the phase inversion is occuring then i can create a plane at that point and monitor the pressure...but how do i get the other pressure values to plot the graph. can anyone help me out thanks Rashmi |
|
December 12, 2005, 10:29 |
Re: phase inversion
|
#2 |
Guest
Posts: n/a
|
Eulerian approach cannot handle phase inversion. And PBE implementation in FLUENT does not support VOF. That is the reason why I told you ealier you have to focus on bubbly flows only. And it is very hard to find papers in horizontal pipes that to for liquid-liquid in bubbly regime. In G-L there are a few such as those by Iskandrani et al. (1999). KP
|
|
December 12, 2005, 10:36 |
Re: Follow up of phase inversion
|
#3 |
Guest
Posts: n/a
|
On top of it you cannot use 2D to solve horizontal pipes. U have to use 3D to get good and correct results. KP
|
|
December 12, 2005, 19:59 |
Follow up of phase inversion
|
#4 |
Guest
Posts: n/a
|
iam using 3d but how do i proceed for simulating phase inversion.which model i have to use if go for bubbly flow.
Rashmi |
|
December 13, 2005, 03:37 |
Follow up of phase inversion
|
#5 |
Guest
Posts: n/a
|
hi KP
is there any udf where i can increase the vol fraction of oil after x iterations keeping the velocity of oil and water constant to get the phase inversion. at phase inversion point the effective viscosity of the mixture is greater then the mixture viscosity.so i write a udf for this will it work?? Rashmi |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
alphaEqn.H in twoPhaseEulerFoam | cheng1988sjtu | OpenFOAM Bugs | 15 | May 1, 2016 16:12 |
two Phase column simulation | chemeng | OpenFOAM | 3 | August 18, 2010 12:53 |
Source Term used in Eulerian Model(Two phase) | Padian | FLUENT | 1 | May 19, 2008 03:47 |
can cfx handle phase inversion and drop size | Rashmi | CFX | 0 | December 14, 2005 05:21 |
compressible two phase flow in CFX4.4 | youngan | CFX | 0 | July 1, 2003 23:32 |